2 * Copyright 2011, The Android Open Source Project
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27 #include "TiledTexture.h"
29 #include "TilesManager.h"
30 #include "TilesTracker.h"
32 #include "PaintedSurface.h"
33 #include "PaintTileOperation.h"
38 #include <cutils/log.h>
39 #include <wtf/CurrentTime.h>
40 #include <wtf/text/CString.h>
43 #define XLOG(...) android_printLog(ANDROID_LOG_DEBUG, "TiledTexture", __VA_ARGS__)
54 void TiledTexture::prepare(GLWebViewState* state, bool repaint)
59 if (!m_surface->layer())
62 // first, how many tiles do we need
63 IntRect visibleArea = m_surface->visibleArea();
64 IntRect area(visibleArea.x() * m_surface->scale(),
65 visibleArea.y() * m_surface->scale(),
66 ceilf(visibleArea.width() * m_surface->scale()),
67 ceilf(visibleArea.height() * m_surface->scale()));
69 for (unsigned int i = 0; i < m_tiles.size(); i++) {
70 BaseTile* tile = m_tiles[i];
71 if (!m_dirtyRegion.isEmpty())
72 tile->markAsDirty(1, m_dirtyRegion);
74 m_dirtyRegion.setEmpty();
76 if (area.width() == 0 && area.height() == 0) {
82 int tileWidth = TilesManager::instance()->layerTileWidth();
83 int tileHeight = TilesManager::instance()->layerTileHeight();
85 m_area.setX(area.x() / tileWidth);
86 m_area.setY(area.y() / tileHeight);
87 float right = (area.x() + area.width()) / (float) tileWidth;
88 float bottom = (area.y() + area.height()) / (float) tileHeight;
89 m_area.setWidth(ceilf(right) - m_area.x());
90 m_area.setHeight(ceilf(bottom) - m_area.y());
92 XLOG("for TiledTexture %x, we have a visible area of %d, %d - %d x %d, corresponding to %d, %d x - %d x %d tiles",
94 visibleArea.x(), visibleArea.y(),
95 visibleArea.width(), visibleArea.height(),
96 m_area.x(), m_area.y(),
97 m_area.width(), m_area.height());
99 bool goingDown = m_prevTileY < m_area.y();
100 m_prevTileY = m_area.y();
102 if (m_surface->scale() != m_prevScale)
103 TilesManager::instance()->removeOperationsForFilter(new ScaleFilter(m_surface->scale()));
105 m_prevScale = m_surface->scale();
107 for (int i = 0; i < m_area.width(); i++) {
109 for (int j = 0; j < m_area.height(); j++) {
110 prepareTile(repaint, m_area.x() + i, m_area.y() + j);
113 for (int j = m_area.height() - 1; j >= 0; j--) {
114 prepareTile(repaint, m_area.x() + i, m_area.y() + j);
120 void TiledTexture::markAsDirty(const SkRegion& dirtyArea)
122 m_dirtyRegion.op(dirtyArea, SkRegion::kUnion_Op);
125 void TiledTexture::prepareTile(bool repaint, int x, int y)
127 BaseTile* tile = getTile(x, y);
129 tile = new BaseTile(true);
130 m_tiles.append(tile);
133 tile->setContents(this, x, y, m_surface->scale());
135 // TODO: move below (which is largely the same for layers / tiled page) into
136 // prepare() function
138 if (tile->isDirty() || !tile->frontTexture())
139 tile->reserveTexture();
140 LayerAndroid* layer = m_surface->layer();
141 if (tile->backTexture() && tile->isDirty() && !tile->isRepaintPending() && layer) {
142 PaintTileOperation *operation = new PaintTileOperation(tile, m_surface);
143 TilesManager::instance()->scheduleOperation(operation);
147 BaseTile* TiledTexture::getTile(int x, int y)
149 for (unsigned int i = 0; i <m_tiles.size(); i++) {
150 BaseTile* tile = m_tiles[i];
151 if (tile->x() == x && tile->y() == y)
157 bool TiledTexture::draw()
160 TilesManager::instance()->getTilesTracker()->trackLayer();
163 bool askRedraw = false;
164 if (m_area.width() == 0 || m_area.height() == 0)
168 TilesManager::instance()->getTilesTracker()->trackVisibleLayer();
171 float m_invScale = 1 / m_surface->scale();
172 const float tileWidth = TilesManager::layerTileWidth() * m_invScale;
173 const float tileHeight = TilesManager::layerTileHeight() * m_invScale;
174 XLOG("draw tile %x, tiles %d", this, m_tiles.size());
175 for (unsigned int i = 0; i <m_tiles.size(); i++) {
176 BaseTile* tile = m_tiles[i];
177 if (tile->x() >= m_area.x()
178 && tile->x() < m_area.x() + m_area.width()
179 && tile->y() >= m_area.y()
180 && tile->y() < m_area.y() + m_area.height()) {
182 rect.fLeft = tile->x() * tileWidth;
183 rect.fTop = tile->y() * tileHeight;
184 rect.fRight = rect.fLeft + tileWidth;
185 rect.fBottom = rect.fTop + tileHeight;
186 XLOG(" - [%d], { painter %x vs %x }, tile %x %d,%d at scale %.2f [ready: %d] dirty: %d",
187 i, this, tile->painter(), tile, tile->x(), tile->y(), tile->scale(), tile->isTileReady(), tile->isDirty());
188 askRedraw |= !tile->isTileReady();
189 tile->swapTexturesIfNeeded();
190 tile->draw(m_surface->opacity(), rect, m_surface->scale());
192 TilesManager::instance()->getTilesTracker()->track(tile->isTileReady(), tile->backTexture());
199 bool TiledTexture::paint(BaseTile* tile, SkCanvas* canvas, unsigned int* pictureUsed)
204 XLOG("painting scheduled tile(%x : %d, %d, %.2f, %x) for %x",
205 tile, tile->x(), tile->y(), tile->scale(), tile->painter(), this);
206 return m_surface->paint(tile, canvas, pictureUsed);
209 void TiledTexture::paintExtra(SkCanvas* canvas)
211 m_surface->paintExtra(canvas);
214 const TransformationMatrix* TiledTexture::transform()
216 return m_surface->transform();
219 void TiledTexture::beginPaint()
222 m_surface->beginPaint();
225 void TiledTexture::endPaint()
228 m_surface->endPaint();
231 void TiledTexture::removeTiles()
233 for (unsigned int i = 0; i < m_tiles.size(); i++) {
238 bool TiledTexture::owns(BaseTileTexture* texture)
240 for (unsigned int i = 0; i < m_tiles.size(); i++) {
241 BaseTile* tile = m_tiles[i];
242 if (tile->frontTexture() == texture)
244 if (tile->backTexture() == texture)
250 } // namespace WebCore